车载环视解决方案芯片ISL79985_车载环视

车载环视

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FN8851 Rev 2.00 Page 1 of 2

June 24, 2016

FN8851

Rev 2.00

June 24, 2016

ISL79985, ISL79986

4-Channel Differential Input Video Decoder with MIPI-CSI2/BT.656 Output for

Around View Applications

DATA SHORT

To request the full datasheet, please visit: ISL79985 or ISL79986

The ISL79985, ISL79986 integrates four high quality

NTSC/PAL/SECAM video decoders that convert the analog

composite video signal to digital component YCbCr data for

automotive applications. Each channel contains a 10-bit ADC

that supports single-ended, differential, and pseudo

differential composite video inputs, proprietary clamp and

gain controllers, thus, utilizes a 4H-comb filter for separating

luminance and chrominance to reduce cross noise artifacts.

Integrated short-to-battery and short-to-ground detection,

advanced image enhancement capabilities such as the

programmable Automatic Contrast Adjustment (ACA), and the

MIPI-CSI2/ITU-R BT.656 output interface make the ISL79985,

ISL79986 an ideal solution for demanding automotive around

view applications.

Applications

•Automotive surround view

Features

Analog Video Decoder

• Software selectable analog input control allows for

combinations of single-ended CVBS and differential CVBS

• Integrated four video analog anti-aliasing filters and 10-bit

CMOS ADCs with differential and single-ended inputs

• Fully programmable static gain or automatic gain control for

the Y-channel

• Programmable white peak control for the Y-channel

• 4-H adaptive comb filter Y/C separation

• PAL delay line for color phase error correction

• Digital subcarrier PLL for accurate color decoding

• Digital horizontal PLL for synchronization processing and

pixel sampling

• Advanced synchronization processing and sync detection for

handling non-standard and weak signal

• Automatic color control and color killer

• Chroma IF compensation

• Programmable output cropping

FIGURE 1. ISL79985 BLOCK DIAGRAM

ADC

FILTER

AGC

ADC

FILTER

AGC

ADC

FILTER

AGC

ADC

FILTER

AGC

AFE

SHORT

DETECTION

LINE INTERLEAVING ENGINE

FIFO CONTROL

MIPI CSI

AND DPHY

C INTERFACE

OSC

PLL

XTI

XTO

SCLK

SDAT

REGFILE

IRQ

RSTB

4H COMB

VIDEO DEC

ACA

CSC

DEC_CH

REGFILE

4H COMB

VIDEO DEC

ACA

CSC

DEC_CH

REGFILE

4H COMB

VIDEO DEC

ACA

CSC

DEC_CH

REGFILE

4H COMB

VIDEO DEC

ACA

CSC

DEC_CH

REGFILE

CLKO/ MPP[1]

MPP[0]

MIPIC

MIPID0

MIPID1

VIN1A

VIN1B

DIAG1

VIN2A

VIN2B

DIAG2

VIN3A

VIN3B

DIAG3

VIN4A

VIN4B

DIAG4

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out<<(ISL-p_ISL)5.0/132/10/10/6<<" "<<(UDL-p_UDL)5.0/6/10/10/6<<" ";

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